Stove-fltte



BLEECKER A 6L VOSE.

Cooking Stove.

Ptented Doo.' 5', 1848.

N. banks. Pnmummpw. wmingcm. l1 c unirsi) srATEs rA-TENT oFFioE- W. E.BLEECKER AND s. D. vosn, or ALBANnNEw'YoRK,

s'rovE-FLUE.

Specification of Letters Patent No.l 5,954', dated December 5, 1848.

To all whom t may concern:

Be it known that we, WILLIAM E. BLEECKER and SAMUEL D. Vosr., of thecity and county of Albany and State of New York, have invented a new anduseful Improvement in Construction of Flues for Imparting and ConveyingHeat in'Cooking- Stoves, which is described as follows, reference beinghad to the annexed drawings of the same, making part of thisspecification.

Figure l represents a vertical section of the flues near the end intowhich the current of smoke and heated air isl admitted, on the line w ofFig. 5. Fig. 2 represents a vertical section of the flues at the endwhere the current reverts, on the line .e e of Fig. 5. Fig. 3 representsa perspective view o-f the iues and reverting chamber, showing theanvular plate that divides the bottom flue into three angular fines-thebottom plate of the oven being removed. Fig. 4 represents a perspectiveview of the flues and reverting chamberthe bottom plate of the ovenbeing in its proper place. Fig. 5 represents a vertical longitudinalsection showing the central flue and reverting chamber. Fig. 6 is a planof the angular division plate.

The arrows show the direction of the draft. y

Similar letters in the several figures refer to corresponding parts.

The invention and improvement for which a patent is solicited, consistsin the mode or arrangement of flues for accomplishing thefollowing-viZ-equal distribution of heat; increase of draft; andprotection of the flue space from cold air.

The plate A represents the bottom of the oven of a cooking stove whichis to be heated. v B B are the two vertical parallel side plates thatform the sides of the chamber, containing the three flues F1 F2', F3',beneath the oven.

C is the bottom plate of the chamber containing the aforesaid ilues.

D is the division plate that divides the aforesaid chamber into threeangular flues gradually increasing in size from the bottom of the divinglues where the smoke enters said angular flues to where it passes intothe vertical ascending back flue that leads into the smoke pipew-saiddivision plate being cast of an angular form' as representedl in Fig. 6.The said angular plate is made ofless length than the bottom plate C inorder to form the reverting chamber E, at the end of the stove.

The current of heated air is admitted intoY the flues F1 F2 from thediving lues, or y inlets of the ues F1 F2 are made smaller` than anyother' sections of ythe flues, andy from these inlets the luesprogressively enlarge. smallest, the volume of heated air mustnecessarily pass morerapidly; and by rea- At the inlets of the lues Atthe inlets, where the iiues are l t son of the contraction of the fluesat the inlets, the absorbing surface is lessened; and as the currentprogresses its velocity is lessened and the absorbing surface increased.In this manner the heat is more equally distributed over the surface -tobe heated. The

gradual enlargement of the flues from the inlets to the outlets alsofacilitates the draft. By reverting the heat over the entire breadth ofthe angular division plate it requires but a small space between the endof the division plate at d and the plate H of the reverting chamber torevert the entire volume of heat, which, practically, keeps it to theeXtreme front end of the oven plate.

Equal distribution of heatk in a direction` i across the current issecured by compelling the greatest proportion of heat to the sides. Theside plates B B being exposed to cold air, the greatest heat istherefore forced to the sides .to supply what heat may be lost byoutward radiation, while the center is heat-r ed,in conjunction ywithflues F1 F2 by natural diffusion through the plate A, by the heatreturning in Hue F3.

The principal protection from coldair is secured by protecting theconveying flues F1 F2 from contact with it, which is effec'- tuallyaccomplished (except at the sides B B). This is effected by returningthe cur-p' rent of heat in the flue `F3 under the entire breadth of theflues F1 F2, so that the return heat radiates int'o the conveying fluesF:L F2 and into the plate A.

This invention and improyement is not derneaththem, formed by a,converging and 10 confined to stra1ghtl1nes, as curves may prodivergingplate,v 1n cooking stoves, as herein duce the same results; neither 1sit restricted describe to the exact anUles and proportions'laid t .w1 5down in the annexed drawings. t SILEECKER- The invention claimed anddesired to be secured by Letters Patent is- Witnesses:

The combination of two similar trangu- HARRYVCAMP, lar conveying luesWith a return Hue un- ISAAC MAYFIELD.

